About: Basiliscus is a research topic. Over the lifetime, 17 publications have been published within this topic receiving 128 citations. The topic is also known as: Flavius Basiliscus.
TL;DR: The chronicle of Victor of Tunnuna as discussed by the authors covers the years 444-567 and was in fact written in Constantinople and is a generally well-informed source for events in the East during this period.
Abstract: F THE FIFTH AND SIXTH centuries the Chronicle of Victor of Tunnuna is a valuable source that deserves close inspection. What may not always be sufficiently appreciated, because Victor is most frequently referred to as an African bishop and because he wrote in Latin, is that he spent a good deal of his later life in Constantinople. His Chronicle, which covers the years 444-567, was in fact written in Constantinople and is a generally well-informed source for events in the East during this period.1 Like so many other African bishops, Victor fell foul of his sovereign Justinian by defending the works condemned by the emperor in 543 in the so-called Three Chapters edict. This resulted in a trying period of internment for Victor in the Mandracion monastery near Carthage, then on the Balearic Islands, then Algimuritana, and finally with his episcopal colleague Theodore of Cebaruscitana in the prison of the Diocletianic fortress behind the governor's palace in Alexandria (Chron. s.a. 555.2, p.204). In 556 after a twelve-day trial in the praetorium Victor and Theodore were transferred to the Tabennesiote monastery near Canopus, twelve miles east of Alexandria (556.2, p.204). Nine years later, at the request of Justinian himself, Victor and Theodore were summoned from Egypt. At the imperial court they stood their ground in the argument over the 'Three Chapters' with both Justinian and the patriarch Eutychius. As a punishment the two African bishops were placed under house arrest in separate monasteries in Constantinople (565?, p.205). As Victor himself tells us, Theodore died in 567 (p.206) while he himself lived on in monastic exile, where he wrote his chronicle a couple of years later. The chronicle itself is constructed principally around tracing the changes of occupancy of the major sees-Rome, Constantinople, Antioch, Alexandria, and Jerusalem (pp.181-82). For the period of Victor's own lifetime it is particularly full on ecclesiastical politics and
TL;DR: A Brooks Parsimony Analysis based on the geographic distributions of corytophanids and the phylogenetic tree obtained from the combined analysis suggested a Central American origin of the group, a recent colonization of northern South America, and the role of epeirogenic uplifts and the formation of lowlands during the late Tertiary in the differentiation of c Corytophaneids.
Abstract: We conducted partitioned and combined Bayesian and parsimony phylogenetic analyses of corytophanid lizards (Iguania) using mtDNA, gross morphology, and sperm ultrastructure data sets. Bayesian and parsimony hypotheses showed little disagreement. The combined analysis, but not any of the partitioned ones, showed strong support for the monophyly of Corytophanidae and its three genera, Basiliscus, Corytophanes, and Laemanctus. Basiliscus is the sister taxon of a well-supported clade formed by Corytophanes and Laemanctus. The relationships of species within Basiliscus and Corytophanes received weak support, regardless of the method used. We defend those relationships as feasible and open to further testing. Data derived from the ultrastructure of spermatozoa are potentially a good source of characters for systematic inferences of Iguania and its major lineages. A Brooks Parsimony Analysis based on the geographic distributions of corytophanids and the phylogenetic tree obtained from the combined analysis suggested a Central American origin of the group, a recent colonization of northern South America, and the role of epeirogenic uplifts and the formation of lowlands during the late Tertiary in the differentiation of corytophanids.
TL;DR: Morphological studies and the results of animal infections suggest that this parasite represents a new Besnoitia, no species of which has hitherto been described from a poikilo- thermic host.
Abstract: A new species of Besnoitia, B. panamensis (Protozoa : Toxoplasmatidae) is described from two species of Panamanian lizards, Basiliscus basiliscus (L.) and Ameiva ameiva praesignis (Baird and Girard). This is the first report of Besnoitia in Panama and the first description of the genus in a poikilothermic host. Infectivity of the new species for the mouse, hamster, and marmoset is reported and discussed. The existence of Besnoitia in Panama has been recognized only since 24 September 1963, when a female basilisk lizard, Basiliscus basi- liscus (L.), from the Rio Lagarto, about 6 km from the river's mouth (Colon Province), was found to be infected. Subsequently, five in- fected specimens of the large teiid lizard, Ameiva ameiva praesignis (Baird and Girard), locally known as the "borriguero," were taken at Quebrada Bonita, on the Transisthmian Highway about 17 miles south of Colon. Sections of heart, kidney, lung, and spleen revealed large, thick-walled cysts containing numerous organisms which resembled toxoplas- matids. Morphological studies and the results of animal infections suggest that this parasite represents a new Besnoitia, no species of which has hitherto been described from a poikilo- thermic host.
TL;DR: Although activity budgets were largely similar among juveniles and adults, the findings highlight both ontogenetic variation in habitat use and the influence of seasonal variation on basilisk activity.
Abstract: Variation in individual activity budgets may have important impacts for the long-term fitness of a population, yet our understanding of the factors shaping activity remains limited. Here, we report on intraspecific activity budget variation and the factors influencing it within a population of emerald basilisk (Basiliscus plumifrons) lizards in Costa Rica. Because behavioral variation may have a seasonal component, we monitor activity across both a wet and dry season. All basilisks exhibited similar frequencies of behavior throughout the day, with the exception of foraging rate. Adult females foraged more often than adult males or juveniles, possibly to satisfy higher expected energetic demands during the reproductive season. Juvenile and adult lizards occupied separate habitats characterized by significant differences in vegetation structure. In particular, juvenile lizards were more frequently observed in open, grassier habitats that were closer to water than adults. Juveniles may reduce their chances o...